You are right. Her failure to call 911 is not proof of murder. Neither is her failure to ever report her child missing. Neither were her intense attempts to mislead law enforcement who were desperate to find Caylee. casey's continual lies for months, to her mom and dad and Lee about what happened to Caylee and her efforts to send them on a wild goose chase, do not prove murder either.
Neither do searches on the internet, months before her daughter's death, for chloroform, neck breaking, inhalation, death, etc.
And high peaks of a volatile chemical like chloroform, found in the trunk of casey's car, actually causing the state to search the Anthony computers for chloroform queries, well, that's not proof of murder either.
The smell of death coming out of the car that only casey drove for the 31 days before Caylee was reported missing, that does not prove murder.
casey's attempts to cover up that smell, by mentioning a dead squirrel, by dumping the car next to a garbage receptacle, that also does not prove murder.
Showing no terror, panic, grief or concern for her dead child in the 31 days after she went missing, that does not prove murder.
Showing nothing but anger and annoyance during the time she was in jail, whenever concern was shown for Caylee rather than casey, well, that also doesn't prove murder.
Even a triple bagged body dumped in a swamp doesn't conclusively prove murder, although we are getting closer.
And finally, perhaps someone can argue that a tiny, two year old skull, found in the mud with duct tape around its nose and mouth holes, the degradable mandible still firmly attached to the the skull because of that duct tape, is not evidence of murder (although I would disagree). Yes, perhaps, one could argue that that duct taped skull is not in an of itself, proof of murder.
But no one here has ever argued that any one of each of those things I listed, proves murder, in and of itself.
What I believe they all show, however, when taken together, is probably obvious. And I have no doubt.